JFrame in full screen Java?

I will be doing a project soon and I will have to use full screen mode in it. It will draw some graphics in the win...

Regular Expression for matching parentheses?

What is the regular expression for matching '(' in a string? Following is the scenario : I have a string str = ...

Java String With Spaces?

and thank you for helping me. So my question is i need a code that asks you for a String like "1234 567" (input), t...

debug java program step by step in Eclipse?

I would like to debug the whole flow of a java program line by line and I am using eclipse how can I do that? ...

Creating a Magic Square in java?

I have to write a program that takes in an odd number from the user and creates a magic square. A magic square is on...

Creating a custom JButton in Java?

Is there a way to create a JButton with your own button graphic and not just with an image inside the button? If n...

Better way to generate array of all letters in the alphabet?

Right now I'm doing for (char c = 'a'; c <= 'z'; c++) { alphabet[c - 'a'] = c; } but is there a better way...

Can I have macros in Java source files?

In my program I'm reading integers form console many times. Every time, I need to type this line. new Scanner(Syste...

How to create a JPA query with LEFT OUTER JOIN?

I am starting to learn JPA, and have implemented an example with JPA query, based on the following native SQL that I...

Thread Caching and Java Memory model?

I'm trying to understand the Java memory model and threads. As fas has I understand, each thread has a local copy of...

What is the default timezone in java.util.Date?

If i create a new Date() object. What will be the default timezone it will print. I have my machine running in GMT....

How can I call Perl from Java??

I have a Perl module that I would like to use from Java. Is there a way to call this code using either ActiveState P...